IKO APP Polyester Universal Torch-On Underlay

Application

The product is designed to be used as part of a multiple layer bituminous felt system and should be used with an APP cap sheet (cold and warm roofs). All waterproofing detailing must be undertaken as separate flashings.

Description

A polyester based, sand surfaced underlay torch applied.

Features and benefits:

  • Atactic polypropylene (APP) modification – results in a higher softening point, reducing foot marking issues.
  • Temperature stable – APP modified bitumen makes the product suitable for flat, sloping or vertical installation.
  • CE marked.

Applications:

The product is designed to be used as part of a multiple layer bituminous felt system and should be used with an APP cap sheet (cold and warm roofs). All waterproofing detailing must be undertaken as separate flashings.

General information

Uniclass 2015

Pr_25_57_08_75 Reinforced bitumen roofing sheetsPrimary

CAWS

J41/10 Built-up reinforced bitumen membrane warm deck roof covering

J41/110 Built-up reinforced bitumen membrane warm deck roof covering

J41/12 Built-up reinforced bitumen membrane cold deck roof covering

J41/130 Built-up reinforced bitumen membrane cold deck roof covering

Product range

Underlays

Specification data - Reinforced bitumen roofing sheets

Product Reference

IKO APP Polyester Universal Torch-On Underlay

Standard product features

Technical characteristics:

  • Composition: APP bitumen.
  • Form: Roll.
  • Colour: Sand finished.
  • Length: 8 m.
  • Width: 1 m.
  • Mass/ weight: 4 kg/m².
  • Roll weight: 32 kg.
  • Carrier: Polyester.
  • External fire performance (to EN 13501-5): F-roof(t4).
  • Reaction to fire (to EN 13501-1): F.
  • Water tightness (to EN 1928): Pass.
  • Maximum tensile force (to EN 12311-1): Longitudinal ≥500 N/50 mm. Transverse ≥300 N/50 mm.
  • Elongation (to EN 12311-1): Longitudinal and transverse ≥40%.
  • Resistance to tearing (to EN 12310-1): Longitudinal and transverse ≥200 N.
  • Flexibility at low temperature (to EN 1109): Upper and lower ≤-5°C.

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